Air Conditioning Contractors of America

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Air Conditioning Contractors of America

ACCA is a non-profit association serving more than 60,000 professionals and 4,000 businesses in the HVACR community, working together to promote professional contracting, energy efficiency, and healthy, comfortable indoor environments.

Website: http://www.acca.org
Location: Arlington, Virginia
Members: 25
Latest Activity: Dec 22, 2015

Discussion Forum

Manual J & Attic calculations

Started by Robert DV. Last reply by Robert DV Apr 11, 2013. 3 Replies

Can anyone tell me how / if Manual J differentiates between attic floor insulation and insulated roof decks?Continue

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Started by randy tolowski. Last reply by Christopher Morin Apr 10, 2012. 3 Replies

Has anyone done a combustion analysis on a relatively current furnace? Is a 90 truly a 90? Or are the numbers done in lab-like conditions that cannot be reproduced in real time? any info would be…Continue

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Comment by Bruce A. Bailey on September 26, 2013 at 2:26pm

I want to test static pressure for Energy Star version 3 in a split heat pump with the air handler in an interior closet so it does not have any return air duct the filter is in the slot at the bottom of the air handler. The inspection form requires 2 inputs a supply side static pressure (I took it in the riser plenum attached to the Air handler.) and a return side static pressure that is supposed to be between the filter (slid in the bottom of the Air handler) and the blower fan. The contractor says he doesn't think he needs to take the return side static pressure because there are not any return air ducts but he will not allow me to drill a hole in the cabinet between the filter slot and the blower. What do you suggest I do to get an accurate number?

Thank you in advance for any help you can offer.

Comment by Judi Lyall on May 30, 2013 at 5:29pm

I HAVE A NEVER USED TSI ACCU BALANCE MODEL 8371 FOR 2700.00

AND BOOKS MANUAL S/J AND D                                                      60.00

EMAIL JUDI@SHEBUILDSGREEN OR CALL 818.625.0987                                                       

 

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